Thank you to other contributors (The 8.3 path was the answer to the solution).

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So general instructions should be:
1. Install Zimbra Desktop but do not tell it to run.
2. (Optional) If you have tried to make Zimbra Desktop to run by yourself open regedit and delete:
HKEY_CURRENT_USER\Software\Zimbra
3. (Optional) If you have tried to make Zimbra Desktop and it has create some files, let's say in:

Code:

C:\Documents and Settings\Administrador\Configuración local\Datos de programa\Zimbra